Rapid controlled self-assembly makes DNA ideal for building nanostructures. A problem using hybridized intermediates in hierarchic assembly is their thermodynamic lability. We demonstrate a click-fixation technology by which robust hexagonal DNA modules can be made. This principle is applicable to a wide variety of DNA nanoconstructs.

Abstract Crystallization, mechanical properties, and workability are all important for the commercialization optimization of silicate glass compositions. However, inter‐relations these properties as a function composition have received little investigation. Soda‐lime‐silica glasses with Na 2 O‐MgO‐CaO‐Al O 3 ‐SiO compositions relevant to commercial manufacture were experimentally studied multip...

available online at http://meteoritics.org The White Angel: A unique wollastonite-bearing, mass-fractionated refractory inclusion from the Leoville CV3 carbonaceous chondrite Catherine L. V. CAILLET KOMOROWSKI1, 4*, Ernst K. ZINNER2, Kevin D. MCKEEGAN3, Rick HERVIG4, and Peter R. BUSECK4, 5 1Laboratoire d’Etude de la Matière Extraterrestre CNRS UMS2679, Muséum National d’Histoire Naturelle, 61 ...

This paper focuses on examining the pore structure of a cementitious paste made with a calcium silicate (wollastonite) that reacts with carbon dioxide and water to form a hardened solid. The pore structure of the hardened solid has been characterized using vapor sorption and desorption, low-temperature differential scanning calorimetry (LT-DSC), and scanning electron microscopy (SEM). The total...

The heat capacity of a natural monticellite (Ca,.,Mg.,,Fe.~Mn.o,Sio.9903.99) measured between 9.6 and 343 K using intermittent-heating, adiabatic calorimetry yields C$298) and S&s of 123.64 f 0.18 and 109.44 +0.16 J mol-’ K-’ respectively. Extrapolation ofthis entropy value to end-member monticellite results in an S$, = 108.1 + 0.2 J. mol-’ K-‘. High-temperature heat-capacity data were measured...

Brazil is the world’s largest producer of sugarcane (Saccharum officinarum), but occurrence and severity diseases such as orange rust (Puccinia kuehnii), ring spot (Leptosphaeria sacchari), red rot (Colletotrichum falcatum) could be part several factors limiting its production reason for replacing cultivars. It important to use other forms disease control depending on time required ob...